The United States has revealed,for the first time,that it wanted a 'safe exit' for former Pakistan military ruler Pervez Musharraf after he was forced to step down from the post of head of state last year. Anne W Patterson,the US Ambassador to Pakistan,said that Washington wanted a 'safe exit' and a dignified retirement for the former president,the Daily Times newspaper reported,quoting a private TV news channel. The US envoy underlined that Washington had wanted a peaceful transition to democracy. The possibility of Musharraf being tried for treason has arisen after the Supreme Court recently declared the emergency imposed by him in 2007 as unconstitutional and illegal. However,the US envoy said the demands for Musharraf?s trial for treason under Article 6 of Pakistan?s constitution were the country?s internal matter.